since the vanilla sources kernel 3.x came out, I was unable to compile it on my Mac Mini G4 (1GB RAM, 4GM swap space) anymore. Today I finally sat down and figured the problem out. I have sys-kernel/genkernel-3.4.16 installed where the script /usr/share/genkernel/gen_arch.sh checks only for kernels >= 2.6.16 and >= 2.7 in set_kernel_arch() but not for kernels >= 3.x in order to modify the kernel architecture string. I wrote a small patch and updated the genkernel 3.4.16 ebuild on my machine and it seems to work fine now. Is anybody else interested in testing the patched genkernel package?